samsung Evo 850(500 GB) showing lower than expected benchmark

abhidivine

Honorable
Sep 29, 2012
32
0
10,530
Hello Guys,

I got a new evo 850 recently.After benchmarking all seemed well expect the 4k read/write speed. The 4k read/write speed appear to be lower than the usual found on various benchmark sites for my model.
The AHCI is enabled,trim enabled and rapid mode is off.
Can anyone help me understand what is wrong or does my SSD have a manufacturing defect?

My specs are kinda a bit old but as per by research seems fine.

Specs:Intel 3570k (OC 4.2),12 GB vengeance ddr3 (4x2 in Dual channel,4 in single),Motherboard: P8z77-VLX, 2x 1TB WD Black HDD.

Please help me find the issue or if its a manufacturing defect I can return/exchange it.

Any help is deeply appreciated.

Screenshots of Benchmark:
Crystal mark: http://imageshack.com/a/img922/2888/mdCAie.png
Magician: http://imageshack.com/a/img922/7559/LD5DHk.png

 

jayhayjay

Honorable
Nov 18, 2015
215
0
10,690
I'm not hugely knowledgeable of how SSDs are supposed to work but I don't personally see anything wrong with it. You obviously won't get exactly the speeds that are advertised. Benchmarks are also performed under particular conditions so you're bound to see differences.

Here is a chart:

http://ssd.userbenchmark.com/Samsung-850-Evo-250GB/Rating/2977

I assume you refer to the Queue 4K writing speeds. I don't see a huge difference.

 

abhidivine

Honorable
Sep 29, 2012
32
0
10,530


Yeah but the difference shouldn't be more than 10% give or take,right?
Here it shows a difference of around 20-25% in 4k read/write, I think.
Also I get that its not huge but I can still exchange it if its a defective piece.(Iam from India and this SSD is rather expensive here).

 

USAFRet

Titan
Moderator


Yes, your Random numbers are pretty low.
This is my 850 EVO:
6SKc7PT.png


How full is your drive?
 

abhidivine

Honorable
Sep 29, 2012
32
0
10,530


Yeah exactly.But only the Random nos are low not sequential. So, is that because of Some hardware/software compatibility issue or manufacturing defect?
Around 200 GB Data on SSD.

 

abhidivine

Honorable
Sep 29, 2012
32
0
10,530
Hmm but I bought it off Ebay ,with a seller warranty ,so mostly cant contact Samsung directly.
Anyways, Just wanna confirm if its a manufacturing defect or caused by my hardware/software compatibility.
If manufacturing defect then I can return/replace it right now. But don't wanna cause unnecessary hassle for the seller.
 

USAFRet

Titan
Moderator


Screw "unnecessary hassle". It is not working as expected. By a LOT.
Was this advertised as 'new'? Or used, with whatever 'warranty' he said?

During that performance test, was anything else running on that drive?
If so, turn all that off.

And this is why I don't buy parts like that from fleabay.
 

abhidivine

Honorable
Sep 29, 2012
32
0
10,530


Yeah even I don't prefer ebay but it was a good deal this time which prompted me to buy. It was new.

Anyways,the SSD is my boot drive. So whatever windows is running.

 

abhidivine

Honorable
Sep 29, 2012
32
0
10,530
I actually just wanna confirm that since my Motherboard is pretty outdated. Can it actually even provide the bandwidth for all that random IOPS for the ssd to perform at full power.
I'm feeling sceptical about their being a defect with the SSD because all other benchmark performed fine.Even 4k single thread gave proper result.So could the SSD be damaged in spite of this?
 

USAFRet

Titan
Moderator


That z77 motherboard is fine.
As long as you are connected to one of its SATA III ports, no problem.

Even if Samsung doesn't provide warranty service on it, contact them. They may have some other test of info for you.
 

abhidivine

Honorable
Sep 29, 2012
32
0
10,530
@USAFRet Yeah I'm gonna do that, just to make sure with complete certainty and peace of mind.

@SinxarKnights Yeah its on the first Sata port,which is Grey Sata 3.0 (6gbps) port.

Anyways, for clarity I checked on userbenchmark and compared my SSD benchmark with similar builds that had the combination of my motherboard and processor. And I found that the benchmarks I got were similar to all the builds which had the exact same processor-motherboard combination.

So seems like its the issue with the old hardware.

Please correct me any of you guys found some other inconsistent benchmark results.